The document outlines the 2017 cholera outbreak in Zambia, mainly in Lusaka, due to poor sanitation and unsafe water. By December, 493 cases were reported, with risks increasing due to the rainy season. The Zambia Red Cross Society (ZRCS), in collaboration with the Ministry of Health, WHO, and UNICE...F, responded by setting up treatment centers, supplying clean water and chlorine, and conducting hygiene education. 1,500 volunteers were mobilized to support 70,000 people directly. The IFRC allocated CHF 222,351 to control the outbreak, but challenges like limited funding and poor infrastructure remained.
more
WHO supports Zambia in vaccinating 1 million people in Lusaka against cholera to combat an outbreak that began in October 2017, causing 2,672 cases and 63 deaths. Two million vaccine doses were provided by Gavi. WHO and the Zambia National Public Health Institute are improving water access, sanitati...on, and hygiene education while training medical staff. Another 1 million people in high-risk areas will be vaccinated later.
more
The document presents Cameroon's National Response Plan for the 2018 cholera outbreak, covering August to October 2018. It highlights the epidemiological situation, with outbreaks reported in the North and Central regions and a total of 109 suspected cases and 9 deaths by July 2018. The plan outline...s strategies for controlling the epidemic, including epidemiological surveillance, improved access to clean water, sanitation, mass vaccination, community awareness campaigns, and hospital and community-based treatment.
The response is coordinated by the Ministry of Public Health, WHO, and various partners, focusing on early detection, rapid response, and multi-sectoral collaboration. Challenges include poor sanitation, limited healthcare infrastructure, and cross-border disease transmission risks. The plan emphasizes resource mobilization, monitoring, and evaluation to contain the outbreak and prevent future cases.
more
The plan outlines emergency health, WASH and communications interventions to contain and prevent further spread of the outbreak in the 227 high risk districts, where suspected cholera cases were reported during the period October 2016 to May 2017. Health and WASH clusters will continually identify p...riority districts from at
high risk districts, by considering the number of caseload and attack rate. As of 15 May, 30 priority high risk districts (10 Governorates) that report over 100 or more suspected cholera cases have been identified.
more
The Lancet Global Health, published online 18 August 2017;
http://dx.doi.org/10.1016/S2214-109X(17)30332-7
The article "The Political Determinants of the Cholera Outbreak in Yemen" examines how the ongoing civil war has contributed to Yemen’s severe cholera outbreak. The 2017 epidemic was des...cribed as the worst in the world, with cholera spreading rapidly due to the collapse of health, water, and sanitation systems.
The analysis shows that Houthi-controlled areas were disproportionately affected, accounting for 77.7% of cases and 80.7% of deaths. The article highlights the role of the Saudi-led coalition in worsening conditions through airstrikes on infrastructure, blockades restricting medical and food supplies, and the overall humanitarian crisis. It criticizes UNICEF for accepting a $67 million donation from Saudi Arabia while the coalition contributed to the crisis.
The article underscores that political actions and conflict have been key factors in the outbreak’s severity, with both warring sides failing to protect civilians.
more
The GTFCC Laboratory Support for Public Health Surveillance document provides guidelines on using DNA-based molecular techniques for identifying and monitoring Vibrio cholerae strains in cholera outbreaks. It highlights the importance of genetic sequencing for tracking transmission, detecting new va...riants, and improving outbreak response. The report explains methods like PCR testing, whole genome sequencing (WGS), and multiple loci VNTR analysis (MLVA), detailing their advantages and applications. It also outlines best practices for sample collection, storage, and transportation, emphasizing collaboration between national and international laboratories to enhance cholera surveillance and control efforts.
more
On 19 August 2016, the former UN Secretary-General announced a new approach to cholera in Haiti, consisting of two tracks. Track 1 focuses on reducing cholera transmission, improving access to care, and addressing water, sanitation, and health system issues. Track 2 aims to provide material assistan...ce to those most affected by cholera. The Secretary-General urged Member States to show solidarity with Haiti by increasing contributions. The UN General Assembly, in resolution 71/161, recognized the UN's moral responsibility to cholera victims and called for support to eliminate cholera and address its victims' suffering. The Secretary-General was requested to provide an update on the progress of this approach.
more
This document is a situation report (#6) from October 2, 2017, describing the cholera outbreak in Yemen. By October 1, 2017, there were 777,229 suspected cholera cases and 2,134 deaths across 22 of Yemen's 23 governorates. The response involves WASH partners providing hygiene supplies and water trea...tment, health cluster partners operating treatment centers, and communication campaigns reaching over 16 million people. Major challenges include limited supplies, security risks hindering access to affected communities, a weakened health system with over 55% of facilities closed or partially functional, and difficulties importing medicines and medical supplies. Children under 18 represent 60% of cases, while people over 60 report the highest death rates.
more
The document presents a humanitarian snapshot from October 2017 highlighting the dire situation of children in Yemen. Over 11 million Yemeni children needed humanitarian assistance due to the conflict that began in March 2015. The report shows one child dying every 10 minutes from preventable causes..., with 386,000 suffering from severe acute malnutrition. The education system was near collapse with 2,531 schools damaged or repurposed, depriving 1.5 million children of education. More than 7,000 children had been killed or injured in the conflict, and child labor and early marriages were increasing as negative coping mechanisms. The report also notes that 55% of Yemen's 2.9 million displaced persons were children.
more
This article describes WHO's efforts to combat a cholera outbreak in South Sudan in July 2017. The organization received 500,000 doses of oral cholera vaccine (OCV) and was working with South Sudan's Ministry of Health to launch a vaccination campaign from July 28 to August 3, 2017. At the time, the... country had reported 17,785 cholera cases and 320 deaths since the outbreak began in June 2016. The vaccination campaign targeted four counties with high transmission rates: Tonj East, Kapoeta South, Kapoeta North, and Kapoeta East. South Sudan was implementing an integrated approach to control cholera, combining patient care, surveillance, social mobilization, water and sanitation improvements, and vaccination. The article notes that approximately 6 million people in South Sudan were facing starvation, with food insecurity and drought exacerbating the risk of cholera spread as people resorted to using contaminated water sources.
more
Fact sheet Cholera in Creole
The cholera factsheet provides key information on prevention, symptoms, and treatment. It emphasizes hygiene, safe food handling, and water treatment through boiling, filtering, or disinfection. Cholera, a severe diarrheal disease from contaminated water, causes dehydra...tion and can be fatal if untreated. Symptoms include watery diarrhea, vomiting, and weakness. Treatment focuses on rapid rehydration with oral rehydration solutions (ORS) and continued feeding. The guide also covers safe waste disposal, emergency latrines, and burial practices to prevent spread. It aims to educate communities on cholera prevention, early detection, and life-saving care.
more
On October 6, 11 cases of Cholera were confirmed positive in one neighbourhood of the capital Sana’a. No confirmed cases have been reported in other locations in Yemen. UNICEF, together with WHO and Health authorities, have initiated a rapid response setting up a treatment centre as well as dispat...ching an investigation team to the affected neighbourhood. The source of infection was identified as water and commercial food contamination.
more
Lancet Glob Health 2016; 4: e856–63. Open Access
The article "Effectiveness of one dose of oral cholera vaccine in response to an outbreak: a case-cohort study" investigates whether a single dose of the Shanchol oral cholera vaccine can provide effective protection during an outbreak. Conducted i...n Juba, South Sudan, in 2015, the study involved a case-cohort approach, analyzing vaccination status and disease outcomes.
Findings showed that a single dose was 80.2% effective in preventing medically attended cholera cases, increasing to 87.3% after adjustments for confounding factors. These results suggest that a single-dose strategy can be an effective emergency response, particularly in settings with limited vaccine supply and high mobility of affected populations. The study supports using a single-dose approach during outbreaks when a two-dose regimen is logistically challenging.
more
The technical note from the Global Task Force on Cholera Control (GTFCC) examines the risks and benefits of vaccinating pregnant women with WHO-prequalified oral cholera vaccines (OCVs) during mass vaccination campaigns. It highlights that three WHO-approved vaccines (Dukoral®, Shanchol™, and Euv...ichol®) offer sustained protection and a strong safety profile.
While these vaccines are not explicitly contraindicated for pregnant women, there is limited clinical data on their use during pregnancy. However, studies indicate that pregnant women with cholera face higher risks of fetal loss, stillbirth, and complications, especially if they experience severe dehydration. Some evidence suggests that vaccination can reduce cholera incidence in pregnant women and indirectly protect infants.
Although no controlled trials have focused on pregnant women, retrospective studies in Guinea and Zanzibar showed no significant increase in adverse pregnancy outcomes after OCV administration. The GTFCC concludes that the benefits of vaccination outweigh the risks, particularly in high-risk areas, and recommends including pregnant women in cholera vaccination campaigns while continuing to monitor safety data.
more
The WHO webpage on cholera provides an overview of the disease, its causes, and prevention strategies. Cholera is an acute diarrheal infection caused by the bacterium Vibrio cholerae, typically spread through contaminated food or water. It remains a significant global health issue, particularly in a...reas with poor water and sanitation infrastructure.
more
The technical note by the Global Task Force on Cholera Control (GTFCC) discusses the use of Oral Cholera Vaccines (OCVs) for international workers and travelers in cholera-affected areas. It reviews the effectiveness of WHO-prequalified vaccines (Dukoral®, Shanchol™, and Euvichol®), emphasizing ...their role in preventing infection and reducing transmission risks.
The document highlights concerns about travelers contracting cholera in endemic regions and potentially spreading the disease upon returning home. While the overall risk is considered low, certain groups, such as humanitarian workers and travelers to high-risk areas like South Asia, face a higher exposure.
Recommendations include vaccination for emergency and relief workers who may come into direct contact with cholera patients or contaminated environments. However, routine vaccination for general travelers is not widely recommended. The note also calls for better surveillance and studies to assess the potential of vaccines in preventing international transmission.
more
The Interim Guidance on Cholera Rapid Diagnostic Tests (RDTs) by the Global Task Force on Cholera Control (GTFCC) provides recommendations for using RDTs to detect cholera in areas with limited laboratory capacity. It highlights the advantages of RDTs, such as rapid detection (within 30 minutes), ea...se of use by non-laboratory personnel, and their role in early outbreak identification and surveillance. However, it emphasizes that RDTs should not replace culture or PCR testing, as they vary in sensitivity (58-100%) and specificity (60-100%). The document advises on proper test selection, storage, training, and integration into national surveillance systems to enhance cholera response efforts.
more
This document summarizes Haiti's cholera situation as of November 16, 2016. Between January and October 2016, Haiti reported 35,203 new suspected cholera cases (32% increase from 2015) and 369 deaths (56% increase). After Hurricane Matthew, cases rose dramatically, with 52% of new cases concentrated... in Grand'Anse and South departments. Since the 2010 outbreak began, Haiti had experienced 797,000 total cases and 9,353 deaths. The report identifies key factors contributing to cholera persistence: weak water and sanitation infrastructure, limited healthcare access, underfunding, population density, and mobility. Despite concerning trends, humanitarian partners were cautiously optimistic as a feared nationwide outbreak following Hurricane Matthew had not materialized, and a vaccination campaign was underway. However, the cholera response was significantly underfunded, with only 42% of requested funds received.
more